kborovik

# How to use a GPG key for SSH authentication
# Tested on Ubuntu 20.04 LTS

# Enable SSH support in gpg-agent:
echo enable-ssh-support > ~/.gnupg/gpg-agent.conf

# Cache GPG & SSH passwords for 24 hours (the reboot will clear the password cache)
echo max-cache-ttl 86440 >> ~/.gnupg/gpg-agent.conf
echo max-cache-ttl-ssh 86440 86440 >> ~/.gnupg/gpg-agent.conf
echo default-cache-ttl 86440 >> ~/.gnupg/gpg-agent.conf

csamsel

# disable background scan (might prevent standby)
sdparm --quiet --clear=EN_BMS --save /dev/disk/by-id/scsi-?????????????????
# enable standby (powers down drive motor)
sdparm --flexible --quiet --save -p po --set=STANDBY=1 /dev/disk/by-id/scsi-?????????????????
# set standby to 30min
sdparm --flexible --quiet --save -p po --set=SCT=18000 /dev/disk/by-id/scsi-?????????????????
# enable idle (drives spins but servos are off)
sdparm --flexible --quiet --save -p po --set=IDLE_B=1 /dev/disk/by-id/scsi-?????????????????
# set idle to 5min
sdparm --flexible --quiet --save -p po --set=ICT=3000 /dev/disk/by-id/scsi-?????????????????

csamsel

# So you want switch your HPE H240 controller to HBA mode for use with ESXi or UnRaid?

# online you'll find the follow command for HP controllers, like the P420i.
ssacli controller slot=0 modify hbamode=on 

# For me, it was:
ssacli controller slot=255 modify raidmode=off

# while you are at it, you can also switch the power mode:
ssacli controller slot=255 modify powermode=minpower